1. Prepare sauce and keep it warm. This may be made several days or up to 3 months ahead and frozen. Place tortillas in a plastic bag to warm 1 minute in the microwave or wrap tortillas in foil and heat in a 325° F oven 15 minutes. Heat 4 serving plates in the same oven.

2. Fry or poach them. Assemble the dish by placing a tortilla on each plate; then pour about ¼ cup of sauce over each tortilla and put 2 eggs on top.

3. Sprinkle ¼ cup shredded cheese and a few green onions slices over each serving. Place plates back in the oven only long enough to melt the cheese, about 5 minutes. Garnish each plate with avocado and tomato wedges. Pass remaining warm sauce and tortillas separately.